We conducted an a
priori subgroup analysis comparing risk of bias, results and conclusions of reviews with different industry sponsors (for example, cane and beet sugar industry sponsored reviews vs artificial sweetener industry sponsored reviews).
Four a
priori analyses were undertaken comparing outcomes for the hypothesised
subgroups using 2 × 2 factorial ANOVA to assess main (intervention vs comparison group) effects and interaction (intervention by
subgroup effects for mothers who were Australian - born vs overseas - born, first - time vs multiparous, had one vs multiple risk factors, and scored EDS ≥ 10 (antenatal psychosocial distress) vs EDS < 10), while maintaining the power of the whole sample.